Answer: HVDC (High-Voltage Direct Current) and HVAC (High-Voltage Alternating Current) are the two primary methods for large-scale electrical energy transmission.

HVAC is the traditional method, where voltage can be easily stepped up or down using transformers, making it suitable for regional grids. However, HVAC transmission experiences significant losses over long distances due to factors like line resistance, reactance, and the "skin effect."

HVDC is a more modern solution, where AC power is converted to DC for transmission and then back to AC at the destination. While requiring complex converter stations at each end, HVDC is superior for long-distance transmission because it has lower power losses, especially over distances greater than 600-800 kilometers. It also offers better control over power flow and stability, making it ideal for connecting asynchronous grids or integrating remote renewable energy sources.

For your business, this means that while HVAC is crucial for most power distribution, HVDC is the technology of choice for major inter-regional or cross-country projects. We manufacture and supply essential tools and equipment that support the installation and maintenance of both types of transmission lines.